baber/WOPTO huggingface dataset:
Patent GB-737400-A (GB)
Title: Improved mounting for apron-guiding means in textile drafting apparatus
Inventor: SUMMERS RONALD JOHN
IPC: D01H5/26
Filed: 1952-11-10
Abstract: 737,400. Fibre drafting devices. T.M.M. (RESEARCH), Ltd. Nov. 10, 1953 [Nov. 10, 1952], No. 28249/52. Class 120(2). An apron drafting apparatus has aprons of an adjacent upper pair guided by a common tensor bar which is supported on the arbor of the upper apron roller between two bosses. Intermediate the two bosses 20 on arbor 24 is located a sleeve 27 to which is attached a bracket 25 that extends forwardly to form the tensor bar 211 of a pair of aprons 19 and rearwardly to rest through a knife edge 28 on a ramp 30 that may be given transverse movements to raise or lower the knife edge 28 and consequently to vary the pressure of the aprons 19 on the lower aprons 15. Adjustment of the position of the lower apron roller 16 results in a corresponding movement of the ramp 30, thus facilitating the positioning of the upper apron roller. If it is desired to provide a tension adjustment for the aprons 19, the bracket 25 may be slotted instead of being drilled with holes to receive 'screws for attachment to the sleeve 27. Specification 718,926 is referred to.
Patent GB-1057433-A (GB)
Title: Colour photography and dye mordanting compositions therefor
IPC: G03C1/825
Filed: 1963-07-18
Abstract: A dye mordanting composition comprises at least one hydrophilic organic colloid, e.g. gelatin and ethanolamine cellulose acetate, containing a finely-divided uniform dispersion of droplets of a water-immiscible organic solvent boiling above 175 DEG  C., the droplets containing dissolved therein a non-polymeric non-wandering organic cationic mordant for acid dyes.  The composition may also include mordanted acid dyes.  The composition is made by dissolving the cationic mordant in the water-immiscible organic solvent, if desired together with an auxiliary lower-boiling or water-soluble organic solvent, and dispersing the solution in an aqueous solution of the colloid, optionally in the presence of a surfactant, the auxiliary solvent being subsequently removed by air drying or washing.  The cationic mordants described-are quaternary ammonium and phosphonium and ternary sulphonium compounds having a hydrophobic ballast group i.e. a radical having at least 8 carbon atoms, and a list is given including tetra - n - octylammonium bromide, 1:4 - di - n - decyl - 1:4 - diazabicyclo (2:2:2) - octanium perchlorate, n - hexadecyltriphenyl-phosphonium bromide and S,S-di-n-lauryl-S-methylsulphonium thiocyanate.  The organic solvents boiling above 175 DEG  C. include organic carboxylic esters and phosphates such as di-n-butyl phthalate and triphenyl phosphate, and 2:4-di-n-amylphenol.
Patent GB-1366502-A (GB)
Title: Production of long chain amines by reacting monoethanolamine n meth ylethanolamine monoisopropanolamine and/or ethylenediamine with long chain straight chainsecondary chlorides
IPC: C07C211/38
Filed: 1971-06-27
Abstract: 1366502 Metal oxide dispersions I M RENNIE 27 June 1971 28534/71 Heading C1A [Also in Divisions C2 and C7] N-(secondary C8-18 alkyl) derivatives of monoethanolamine, N-methylethanolamine, monoisopropanolamine or ethylenediamine (see Division C2) are useful for dispersing metal oxides in acids; Fe2O3 or Pb3O4 may be dispersed in 15% HCl.
Patent GB-301174-A (GB)
Title: X-ray system
IPC: H05G1/20
Filed: 1927-10-27
Abstract: 301,174. Smith, F. S. Oct. 27, 1927. Dynamos, regulating.-The current for heating the cathode filament of an X-ray tube is supplied by a direct-current generator, and the output of the generator is varied by controlling the current through the field windings. The generator 16 is coupled to a rotary switch 17 comprising two stationary brushes 19, 20 which make contact with ring sectors 21 - - 24. The two pairs of sectors 21, 22 and 23, 24 are insulated from one another, and sectors 21, 22 are connected by a high resistance 25 while the sectors 23, 24 are connected by a low resistance 26. The brushes 19, 20 are in series with the field winding of the generator, so that the rotation of the sectors periodically inserts a high resistance in the circuit of the windings.
Patent GB-1358984-A (GB)
Title: Nuclear reactors
IPC: G21C7/22
Filed: 1970-06-12
Abstract: 1358984 Reactors BRITISH NUCLEAR DESIGN & CONSTRUCTION Ltd 14 June 1971 [12 June 1970] 28702/70 Heading G6C A nuclear reactor includes a plurality of tubes containing a nuclear fuel material and through which tubes a coolant is circulated under pressure, containment means being provided which surround each tube with sufficient light water to act as the reactor moderator. As shown in Fig. 1, a single containment means 15 surrounds a group of tubes 10 each containing enriched nuclear fuel elements (not shown). Surrounding each tube 10 is a cylindrical Al member 12. An annular space 14 defined between each tube 10 and member 12 is filled with CO 2  to act as a thermal insulant. This gas may be pressurized to a level approaching that which obtains within the tubes 10 in order to reduce the pressure stresses experienced by the tubes 10. The tubes 10 are formed of a Zr-alloy and the containment means 15 of Al. The space between each set of four tubes 10 of the group is partially filled by an Al displacement member 16 which, with the members 12 and the containment means 15, defines annular channels 18. At its upper and lower ends the displacement member 16 has central locating bosses 22 forming part of a centrally extending duct 24. The channels 18 are connected at their upper and lower ends respectively to a header and a bottom tank (Fig. 2, not shown) which are connected via a moderator circulating pump. The channels 18 accommodate light water as the reactor moderator, and light water in the header and the bottom tank acts as upper and lower neutron reflectors. A coolant outlet manifold (Fig. 3, not shown) is provided as an upward continuation of the tubes 10. Light water coolant is pumped upwardly through the tubes 10 under a static pressure chosen to allow limited boiling. Trip valves (not shown) provided in or adjacent to the bottom tank can be opened in an emergency whereby the moderator is drained rapidly into a dump tank and the reactor is shut down. Additionally or alternatively, emergency shutdown can be achieved by introducing into the ducts 24 a neutron-absorbent solution of boron in water. The ducts 24 may also be utilized for control of thermal output or of neutron flux distribution by partially filling all or some with a neutronabsorbent solution or other neutron-absorbent material. Neutron-absorbent solution may alternatively or additionally be injected directly into the header at several distributed points. Rapid circulation of the light water moderator into the channels 18 then effects emergency shutdown of the reactor. The light water used as a moderator may contain in suspension material such as beryllia or graphite dust in order to reduce its neutron absorbency. Fairly rapid circulation of the moderator maintains such material in suspension. In an alternative embodiment (Fig. 5, not shown), each tube 10 has its own moderator containment means in the form of a cylindrical aluminium container.
Patent GB-1196434-A (GB)
Title: Apparatus for Generating Impulsive Liquid Pressure
IPC: B21D26/06
Filed: 1967-06-21
Abstract: 1,196,434. Fluid-pressure apparatus. TOKYU SHARYO SEIZO K.K. June 21, 1967 [June 24, 1966; Sept.5, 1966], No. 28754/67. Heading F1P. An apparatus, Fig. 3, for generating an impulsive liquid pressure to deform a metal workpiece (not shown), comprises large and small pistons 22, 24 movable along cylinders 21, 23 into a liquid filled chamber 12 having a channel 4 connected to the impulsive pressure chamber of the metal deforming machine. The pistons 22, 24 are simultaneously propelled into the chamber 12 by compressed air supplied to the ends of the cylinders 21, 23 through ports 28, 29 fed from an inlet pipe 15. Ports 30, 31 in the ends of the cylinders 21, 23 adjacent to the chamber 12 are connected to atmosphere whereby the pistons 22, 24 take up the position shown when the pipe 15 is connected to a vacuum source. The ratio of the pressures applied to the pistons 22, 24 is arranged to equal the inverse ratio of the areas thereof, whereby the momenta of the two pistons are balanced. In a modification, Fig. 6, the impact of the piston 22 is damped by a piston 24 having a plunger 27 disposed within the liquid filled chamber 12 and loaded by compressed air supplied through a pipe 40 to the underside thereof. The friction of piston rings 36 assists in the damping and a shock absorbing member 39 is contacted by the piston 37 rear the end of its stroke.
Patent GB-810149-A (GB)
Title: Dehydrogenation of hydrocarbons
IPC: C07C5/333
Filed: 1956-09-20
Abstract: Alkanes containing 3 to 5 carbon atoms are dehydrogenated in a two-stage process by contacting the alkane in a primary dehydrogenation zone with a dehydrogenation catalyst at 1000-1200 DEG F. and 5 to 20 inches of mercury absolute, mixing the effluent with 1 to 10 volumes of superheated steam per volume of hydrocarbon, and contacting the resultant mixture in a secondary dehydrogenation zone with a dehydrogenation catalyst, active in the presence of water and over which the water gas reaction can take place, at 1050-1300 DEG F. and a pressure similar to that in the primary dehydrogenation zone.  The process is of particular value for the production of alkadienes, the alkane being reduced to alkene in the primary dehydrogenation zone and the alkene to alkadiene in the secondary zone, for example the production of butadiene from n-butane. Unconverted alkane and alkenes are recycled to the hydrocarbon feed to the primary dehydrogenation zone.  Catalysts in the primary dehydrogenation zone should have a surface area of at least 20 m.2/g. such as one containing 5-30 per cent chromium oxide deposited on an activated precipitated or gel alumina.  The reaction is operated on alternate reaction and regeneration, each portion of the cycle ranging from 5-30 minutes.  The temperature in the secondary zone is generally higher than that in the primary.  Suitable catalysts are the oxides or mixtures of the oxides of aluminium, iron, chromium and magnesium promoted with potassium or other alkali-metal oxide or carbonate, and a nickel-calcium-phosphate composition.  In the preparation of butadiene, the product may be separated from butane and butenes by azeotropic distillation, solvent extraction, e.g. with copper ammonium acetate solution, or by complex or compound formation.
Patent GB-604160-A (GB)
Title: Grinding machine work head
IPC: B24B41/06
Filed: 1945-10-31
Abstract: 604,160. Chucks; lathe devices and carriers. NORTON CO. Oct. 31, 1945, No. 28871. Convention date, Jan. 11. [Class 83 (iii)] [Also in Groups XXIII and XXXIV] A hollow spindle chuck for supporting and rotating a long irregularlyshaped workpiece 16 comprises a hollow rotating drum 21, an annular ring 54 adjustably attached to each end of the drum by bolts 57 in slots 61, a pair of arms 65, 66 pivoted on each ring and a pair of opposed clamping screws 75 on each arm. The arms can be swung open to receive the workpiece and then clamped in the operative position by clamping nuts 69 on studs 73 fixed to the ring, and engaging notches 71 on the arms. One arm of each pair carries an adjustably-mounted dial indicator 105, the plunger of which is engaged with the workpiece before the clamping screws 75 are tightened so that any deflection of the axis of the workpiece during clamping can be observed and corrected. The drum is rotated by an electric motor 41 and is supported on three pairs of rollers 25 adjustably mounted on eccentric studs carried in a frame 20. The workpiece is also supported between centres 12, 13 on a longitudinally movable table 11 and is operated on by several grinding-wheels 18.
Patent GB-944999-A (GB)
Title: Improvements relating to drying machines
Inventor: BOWE MAURICE THOMAS
IPC: F26B13/16
Filed: 1961-08-10
Abstract: 944,999. Web drying apparatus. PETRIE & McNAUGHT Ltd. July 31, 1962 [Aug. 10, 1961], No. 28882/61. Heading F4G. A rotatable screen drier comprises screens 2, Fig. 2 (only one of which is shown) through which the air is withdrawn by fans 6 (one of which is shown) arranged coaxially with the screens and having no separate casings but discharge the air radially into a common fan chamber formed in the drier casing by a partition 9 from which the air passes over heating elements 11, 12, into the space above the screens. Each screen is carried by rings 17, 19, Fig. 4, at their ends which run on rollers provided on brackets on the drier casing at each end of each screen, the ring 19 at the end of each screen remote from its associated fan having an internal ring of teeth 20 engaged by a pinion 39 mounted on a shaft 37 which is driven via bevel gears 35, 36 from a motordriven line shaft common to all the shafts 37.
Patent GB-714275-A (GB)
Title: Improvements in or relating to the manufacture of moisture-proof heat-sealable films
Inventor: BERRY WILLIAM
Filed: 1951-12-10
Abstract: Compositions suitable for coating regenerated cellulose and for the manufacture of self-supporting films comprise (1) an aqueous dispersion of a vinylidene chloride copolymer, between 0.1 and 3 per cent. of an ester type wax, between 0.05 and 1.0 per cent. of finely divided vinyl chloride polymer, and optionally a surface-active agent, or (2) a volatile organic solvent solution of a vinylidene chloride copolymer and 0.1 to 3 per cent. of an ester-type wax and dispersed therein 0.05 to 1 per cent. of finely divided vinyl chloride polymer.  The vinylidene chloride may be copolymerized with acrylonitrile, methacrylonitrile, vinyl chloride, methyl vinyl ketone, vinyl acetate, styrene, itaconic acid or esters of acrylic or methacrylic acid, e.g. methyl methacrylate.  Vinyl chloride polymers mentioned are polyvinyl chloride and copolymers of over 90 per cent. vinyl chloride with vinylidene chloride, acrylonitrile, vinyl acetate or esters of acrylic or methacrylic acids and mixtures.  The organic solvent may be methyl ethyl ketone and/or toluene.  Specified waxes are carnauba, spermaceti, candellila, palm wax, hydrogenated castor oil, benzyl stearate, pentaerythritol distearate, pentaerythritol tetrastearate and n-octadecyl stearate.  Surface-active agents mentioned are sodium alkyl aryl sulphonates, sodium alkyl sulphate, morpholine stearate and mixtures.  The selfsupporting films are made by depositing the composition on a smooth surface, e.g. glass, removing the liquid and stripping off the film. Specification 655,006 is referred to.
Patent GB-1192394-A (GB)
Title: Improvements in or relating to Light Modulators
Inventor: FOX ALAN JOHN
IPC: G02F1/03
Filed: 1967-06-22
Abstract: 1,192,394. Light modulators. MULLARD Ltd. 22 June, 1967, No. 28909/67. Heading H4F. A light modulator comprises a multi-cavity microwave slow-wave structure having electrooptical material, e.g. ADP, disposed in a plurality of the cavities, the structure being arranged to impart to microwaves of a given frequency coupled into end of said structure, a phase velocity which is the same as the phase velocity of light directed along a path which successively passes through the material in each cavity. As shown, Fig. 1, the structure may comprise a circular waveguide closed for microwaves by terminating discs 2 and 3 and provided internally with spaced apertured transverse discs 4-8 and 26 which form ends of cavities 9-14 and 27. The electro-optical material may be in the form of a rod 15, or as an alternative it may be in the form of discrete portions provided within each cavity, the portions being optically matched to one another by a second transparent material, e.g. Canada Bolsam, which interconnects the electrooptical material in each adjacent pair of cavities and passes through the apertures in the intervening discs. A standing wave may be set up with its electric vector extending longitudinally along the structure and hence along the ADP rod, and laser light polarized parallel to  x <SP>1</SP> or y<SP>1</SP> passing along path P will be phase-modulated at the microwave frequency. The structure need not be resonant at the input modulation frequency, in which case the structure is terminated at its output end by a matched load 25 (shown dotted). The structure may be made up from a series of identical silver-plated brass sections each containing one transverse disc, the sections being brazed together. To provide amplitude modulated light a quarter wave plate and an analyser are provided at the output of the slowwave structure Fig. 2 (not shown).
Patent GB-285768-A (GB)
Title: Improvements in detachable heel treads for boots and the like
IPC: A43B21/37
Filed: 1927-10-31
Abstract: 285,768. Vernon, P. V. Nov. 1, 1927. Roll holders.-A holder for a roll of paper 10 comprises a base or disc 6 upon which the roll rests at its outer edge only, a vertical pin 5 extending through the centre of the roll and a disc 7 slidably mounted on the pin and bearing on the outer edge only of the roll. The discs are dished as shown and free to rotate on the pin a, the weight of the discs and roll causing sufficient friction at the bearing face 9, between the disc 6 and the bracket 2 supporting the pin 5, to retard the movement of the roll. The bracket 2 has holes 4, 8 arranged at right angles for attachment of the pin so that the bracket may be attached to either a vertical or a horizontal surface. Two or more rolls with separating discs between them may be arranged on the pin 5 or two or more pins may be carried by a single bracket.
Patent GB-284577-A (GB)
Title: Improvements in vehicles provided with load weighing devices
IPC: G01G19/08
Filed: 1927-10-31
Abstract: 284,577. Blackett, R. B. Girdwood-. Oct. 31, 1927. Axle-trucks and bogies; underframing of bodies.-A loadweighing rail vehicle comprises a pair of trucks 15, a frame 11 supported thereon, a car body mounted on the frame, a screw 18 arranged to raise and form a pivot for the body, weighing means comprising springs 36 supported on the frame 11 for weighing the body, and circular tracks 27, 28 to support the body in alignment with the frame when in lowered position. The weighing-device comprises the springs 36 whose deflection, when supporting the body, causes a plunger 32 to recede into a cylinder 30 containing fluid to register the weight of the vehicle on a gauge 39. Two such devices are used, one on each side of the central screw 18 and the plungers 32 of each engage in a circular rack 38 on the vehicle body. In order to weigh the load, the body is raised by the screw 18 and turned into the position shown in Fig. 2. The screw is then turned in the reverse direction to lower the body on the plungers 32 whereby the weight of the load is indicated on the gauges 39. The body may be locked to the undercarriage by bolts, and when the load has to The weighed the bogies are prevented from turning by connecting the bogie frame to the frame 11 by chains 46. The bogie wheels are locked by being run onto drags 48, Fig. 7.
Patent GB-345930-A (GB)
Title: Improvements in the manufacture and production of azo dyestuffs
Filed: 1929-09-25
Abstract: Monoazo dyes and chromium compounds thereof; acid wool dyes, dyeing with.-Dyes are obtained by coupling diazotized aminobenzene sulphonic or carboxylic acid amides or their derivatives such as the nitro or halogen derivatives which are free from hydroxy or further sulphonic or carboxylic acid groups with 1-phenyl-3-methyl-5-pyrazolones which contain a hydroxyl group and a carboxyl group in the ortho position to one another in the phenyl radical and which, if desired, may contain further substituents.  The dyes may be improved by after-chroming on the fibre or in substance.  In examples dyes are formed by diazotizing either metanilic acid amide or m-aminobenzoic acid amide and coupling with 1 - (21 - hydroxyl - 31 - carboxyl-51-sulpho) - phenyl - 3 methyl-5-pyrazolone and these dyes can be further converted into complex chromium compounds.  Dyes can also be formed by using sulphanilic acid amide or halogen or nitro derivatives of an aminobenzene carboxylic acid amide for the amine to be diazotized and either the original pyrazolone or the corresponding unsulphonated pyrazolone as the coupling component.  Specification 12205/09, [Class 2 (iii), Dyes &c.], is referred to. 1-(21-hydroxy-3-carboxy) - phenyl-3-methyl-5-pyrazolone is made by condensing acetoacetic ester with the hydrazine derived from aminosalicylic acid.  Reference has been directed by the Comptroller to Specifications 118,448, [Class 2 (iii), Dyes &c.], and 340,243.
Patent GB-938357-A (GB)
Title: Improvements in or relating to mounts for sheet material such as photographs, pictures, publicity matter and the like
Inventor: PHILLIPS WALTER
IPC: A47G1/14
Filed: 1961-08-11
Abstract: 938,357. Picture &c. mounts. WALTER PHILLIPS (PERIVALE) Ltd. Aug. 28, 1962 [Aug. 11, 1961], No. 29067/61. Class 11. A mount for sheet material 11, e.g. a photograph, comprises a base lamina 2 having a narrow slot 3 (or 4) therethrough, a transparent flexible sheet 5 (or 6) threaded through the slot 3 to overlie a substantial area of the front of the base 2 at one side of the slot 3 and to overlie the rear of the base 2 at the opposite side of the slot 3, and pressure-adhesive tape 9 (or 10) overlapping that part 7 (or 8) of the sheet 5 which overlies the rear of the base 2 and which extends over at least the width of the slot 3. An album leaf, as shown, incorporating two such mounts on each side thereof includes a perforated 12 separating card 1 to which are glued the edges of the laminµ 2, 2a. The sheet material 11 is located beneath the transparent sheet 5 and is detachably adhered at its edge to the tape 9.